Increase the broken tests threshold from 10 to 20

base/test/launcher/test_launcher.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/test/launcher/test_launcher.h"
 
 #if defined(OS_POSIX)
 #include <fcntl.h>
 #endif
 
@@ skipping 470 matching lines @@
   watchdog_timer_.Reset();
 
   // Do not waste time on timeouts. We include tests with unknown results here
   // because sometimes (e.g. hang in between unit tests) that's how a timeout
   // gets reported.
   if (result.status == TestResult::TEST_TIMEOUT ||
       result.status == TestResult::TEST_UNKNOWN) {
     test_broken_count_++;
   }
   size_t broken_threshold =
-      std::max(static_cast<size_t>(10), test_started_count_ / 10);
+      std::max(static_cast<size_t>(20), test_started_count_ / 10);
   if (test_broken_count_ >= broken_threshold) {
     fprintf(stdout, "Too many badly broken tests (%" PRIuS "), exiting now.\n",
             test_broken_count_);
     fflush(stdout);
 
 #if defined(OS_POSIX)
     KillSpawnedTestProcesses();
 #endif  // defined(OS_POSIX)
 
     results_tracker_.AddGlobalTag("BROKEN_TEST_EARLY_EXIT");
@@ skipping 567 matching lines @@
 
     g_live_processes.Get().erase(process_handle);
   }
 
   base::CloseProcessHandle(process_handle);
 
   return exit_code;
 }
 
 }  // namespace base